142 DISEASES Class I. 3. 2. 7. 



In the cafe from. Liverpool, published by Dr. Rollo, the pa- 

 tient did net weigh heavier after fitting ten minutes in a bath 

 of no degrees of heat ; vvhieh {hews that no part cf the diabe- 

 tic urine was owing to iucreafed cutaneous abforption, and that 

 this difeafe was not the aqueous but (he chyliferous diabetes ; 

 and I fuppofe the patient's weighing heavier or not after ufing 

 a warm bath may depend on the quantity of fluid previouily 

 taken by the mouth ; as the (kin may thence be either in an ab- 

 fcrbent or exhalent ftate, and owing to a greater or lefs degree 

 of heat, which may render the quantity of perfpiration in the 

 bath greater than the quantity abforbed. See Seel. XXIX. 4. 5. 



7. Sudor lymphaiu:us. Profufe fweats from the inverted mo- 

 rons of the cutaneous lymphatics, as in fome fainting fits, and 

 at the approach of death ; and as perhaps in the fudor angiica- 

 nus. See Seel. XXIX. 5. Thefe fweats are glutinous ro the 

 touch, and without increased heat of the" &ui ; if the part is not 

 covered, the fktn becomes cold from the evaporation of the fluid. 

 Thefe fweats without heat fometimes occur in the acl of vomit- 

 ing, as in Seel. XXV, 9. and are probably the caufe of the cold 

 fiveaty hands of fome people. As mentioned in Seel. XXIX. 

 4. 9. in the cafe of R. Davis, which he cured by frequent ap- 

 plication of lime. Though it is poffible, that cold fweaty hands 

 may alio strife from the want of due abforption of the perfpirable 

 matter effufedon them, and that the coldnefs may be owing to 

 the greater evaporation in confequence. 



The acid fweats described by Dr. Dobfcn, which he obferved 

 in a diabetic patient, and afcribes to the chyle efFufed on the 

 fkin, muit be afcribed to the retrograde aclion of the cutaneous 

 lymphatics. See Seel. XXIX. 6. 



8. Sudor ajlhmatlcus. The cold fweats in this difeafe only 

 cover the head, arms, and bread, and are frequently exceeding- 

 ly profufe. Thefe fweats are owing to the inverted motions of 

 the cutaneous lymphatics of the upper part of the body, and at 

 the fame time the increafed abforption of the pulmonary abfor- 

 bents : hence thefe fweats when profufe relieve the prefent fit of 

 afthma. There is no other way to account for fweats appear- 

 ing on the upper parts of the body only, but by the fluid having 

 been abforbed by the lymphatic branch of the lungs, and efFufed 

 on the fkin by the retrograde movements of the cutaneous lym- 

 phatics : which join thefe of the lungs before they enter into 

 the venous circulation or if they were occasioned, as gener- 

 ally fuppofed, by the difficulty of the circulation of the blood 



the lungs, the whole (kin muft be equally atFecled, both 

 of the upper and lower parts of the body ; for whatever could 

 ebftrucl the circulation in the upper part of the venous fyilem, 



m u ft 





